function watermark(t1, t2, t3) {
  var maxWidth = document.documentElement.clientWidth
  var maxHeight = document.documentElement.clientHeight
  var intervalWidth = 320 //间隔宽度
  var intervalheight = 180 //间隔高度
  var rowNumber = (maxWidth - 40 - 200) / intervalWidth //横向个数
  var coumnNumber = (maxHeight - 40 - 80) / intervalheight //纵向个数

  //默认设置
  var defaultSettings = {
    watermark_color: '#ff008e', //水印字体颜色
    watermark_alpha: 0.4, //水印透明度
    watermark_fontsize: '15px', //水印字体大小
    watermark_font: '微软雅黑', //水印字体
    watermark_width: 200, //水印宽度
    watermark_height: 80, //水印长度
    watermark_angle: 15, //水印倾斜度数
  }

  var _temp = document.createDocumentFragment()
  for (var i = 0; i < rowNumber; i++) {
    for (var j = 0; j < coumnNumber; j++) {
      var x = intervalWidth * i + 20
      var y = intervalheight * j + 30
      var mark_div = document.createElement('div')
      mark_div.id = 'mark_div' + i + j
      mark_div.className = 'mark_div'
      ///三个节点
      var span0 = document.createElement('div')
      span0.appendChild(document.createTextNode(t1))
      var span1 = document.createElement('div')
      span1.appendChild(document.createTextNode(t2))
      var span2 = document.createElement('div')
      span2.appendChild(document.createTextNode(t3))
      mark_div.appendChild(span0)
      mark_div.appendChild(span1)
      mark_div.appendChild(span2)
      //设置水印div倾斜显示
      mark_div.style.webkitTransform =
        'rotate(-' + defaultSettings.watermark_angle + 'deg)'
      mark_div.style.MozTransform =
        'rotate(-' + defaultSettings.watermark_angle + 'deg)'
      mark_div.style.msTransform =
        'rotate(-' + defaultSettings.watermark_angle + 'deg)'
      mark_div.style.OTransform =
        'rotate(-' + defaultSettings.watermark_angle + 'deg)'
      mark_div.style.transform =
        'rotate(-' + defaultSettings.watermark_angle + 'deg)'
      mark_div.style.visibility = ''
      mark_div.style.position = 'fixed'
      mark_div.style.left = x + 'px'
      mark_div.style.top = y + 'px'
      mark_div.style.overflow = 'hidden'
      mark_div.style.zIndex = '9999'
      mark_div.style.pointerEvents = 'none' //pointer-events:none  让水印不阻止交互事件
      mark_div.style.opacity = defaultSettings.watermark_alpha
      mark_div.style.fontSize = defaultSettings.watermark_fontsize
      mark_div.style.fontFamily = defaultSettings.watermark_font
      mark_div.style.color = defaultSettings.watermark_color
      mark_div.style.textAlign = 'center'
      mark_div.style.width = defaultSettings.watermark_width + 'px'
      mark_div.style.height = defaultSettings.watermark_height + 'px'
      mark_div.style.display = 'block'

      _temp.appendChild(mark_div)
    }
  }
  document.body.appendChild(_temp)
}
